Abstract: Processes for the treatment of organic waste are disclosed comprising digesting organic waste under anaerobic conditions so as to convert at least a portion of the organic waste and produce a clear decant and a mixture of biomass and unconverted organic compounds, returning at least a portion of the mixture of biomass and unconverted organic compounds to the digesting step so as to control the system net growth rate therein, partially oxidizing at least a portion of the mixture of biomass and unconverted organic compounds to produce a conditioned effluent therein, and returning the conditioned effluent to the digesting step.

Abstract: An integrated process for the treatment of organic waste comprising the steps of subjecting said organic waste to biological digestion with recycle of biosolids; contacting the resulting mixture of biosolids and unconverted organic material with one or more oxidizing agents in a chemical treatment unit; monitoring the oxidation-reduction potential (ORP) of the mixture of biosolids and unconverted organic material in the chemical treatment unit and adjusting the concentrations of the oxidizing agents to maintain the ORP within a selected range greater than 0 mV to condition the mixture so that it is more amenable to biodegradation; and returning the conditioned effluent to the biological reactor. The combined effects of improving biodegradability through chemical conditioning act and controlled recycle of biosolids act to reduce net biosolids production to nearly zero.